Home / 3,055.82-4,218.14-1,860.80

Finding the Fourth Proportional to 3,055.82, 4,218.14 and 1,860.80

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Solution

The fourth proportional to 3,055.82, 4,218.14 and 1,860.80 is: 2,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.82 : 4,218.14 = 1,860.80 : x
  2. Step 2: Convert to fraction form
    3,055.82/4,218.14 = 1,860.80/x
  3. Step 3: Cross multiply
    3,055.82x = 4,218.14 × 1,860.80
  4. Step 4: Simplify right side
    3,055.82x = 7,849,098.47
  5. Step 5: Solve for x
    x = 7,849,098.47/3,055.82
  6. Step 6: Final answer
    x = 2,568.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.